Question

eighteen obese volunteers weighed themselves before and after a two-day fast. the appropriate design for testing the significance of the difference between the means is
A. Independent sample T test
B. Dependent sample T test
C. One sample T test D. Z test

Answer 1

Option C, A associated samples t-test is the best method for determining the importance of the mean difference.

The weight of an individual before and after a two-day fast is the two variables in this situation.

To use the t-test on paired data, the given observations must be related. Using the variations between the two sets of data, we calculate the test statistic. The degree of freedom for this test is n 1, where n is the overall number of observations.

If the standard deviation is provided and the sample size is large, the statistical hypothesis known as the Z-test is employed to assess if the two samples' computed means are different. The T-test, in contrast, evaluates how averages from distinct data sets differ when the variance or standard deviation is unknown.

Learn more about the t-test at

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